منابع مشابه
Neural mechanisms in disorders of defaecation.
The anal sphincter is made up of the internal and external sphincter, which are arranged concentrically around the anal canal; they overlap except in the most distal part of the anal canal in the region of the superficial part of the external sphincter. Continuous electromyographic (EMG) activity may be recorded in the external anal sphincter at rest (Floyd and Walls, 1953) but the external sph...
متن کاملThe basal ganglia and disorders of movement: pathophysiological mechanisms.
The basal ganglia are part of a neuronal network organized in parallel circuits. The "motor circuit" is most relevant to the pathophysiology of movement. Abnormal increment or reduction in the inhibitory output activity of basal ganglia give rise, respectively, to poverty and slowness of movement (i.e., Parkinson's disease) or dyskinesias.
متن کاملNew insights into the neural basis of functional movement disorders.
Functional movement disorders (FMDs) encompass a broad range of abnormal movements (e.g., tremor, dystonia, myoclonus, and parkinsonism) that are clinically inconsistent with known neurologic diseases. Although they account for 16% of new referrals to neurology clinics, the pathophysiology of FMDs is poorly understood. In addition, FMDs represent a serious challenge for clinicians in terms of d...
متن کاملBasal ganglia neural mechanisms of natural movement sequences1
Natural rodent grooming and other instinctive behavior serves as a natural model of complex movement sequences. Rodent grooming has syntactic (rule-driven) sequences and more random movement patterns. Both incorporate the same movements—only the serial structure differs. Recordings of neural activity in the dorsolateral striatum and the substantia nigra pars reticulata indicate preferential act...
متن کاملBasal ganglia neural mechanisms of natural movement sequences.
Natural rodent grooming and other instinctive behavior serves as a natural model of complex movement sequences. Rodent grooming has syntactic (rule-driven) sequences and more random movement patterns. Both incorporate the same movements--only the serial structure differs. Recordings of neural activity in the dorsolateral striatum and the substantia nigra pars reticulata indicate preferential ac...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1989
ISSN: 0022-3050
DOI: 10.1136/jnnp.52.11.1315-a